Its the only Level 1 trauma center in the PNW. The next closest is SLC I think.
You might consider checking out Bozeman too. It used to be really cool but I havent been there in a while and I hear its growing and changing like crazy.
Leavenworth is an agreeable place to live, with good access to outdoors. Of course, no where beats Europe for access.
Seems like half the people I know here live in 11worth and work in the medical field in Wenatchee, which is a medical epicenter for Central Washington.